提高含砷金精矿二段焙烧—氰化工艺金浸出率的试验研究  

Experimental researches on enhancing gold leaching rate of a gold concentrate containing arsenic with two-stage roasting and cyanidation technique

作　　者：薛光[1] 王永新[2] 薛元昕[3] 

机构地区：[1]中国人民武装警察部队黄金第七支队 [2]河北怀来宏达矿业有限公司 [3]烟台职业学院

出　　处：《黄金》2011年第6期48-49,共2页Gold

摘　　要：在试验研究基础上,提出了一种提高含砷金精矿二段焙烧—氰化浸出工艺金浸出率方法。试验结果表明,含砷金精矿经一段焙烧(450～500℃)除砷后,加入一定量的添加剂SR,再进行二段焙烧(630～650℃),然后经稀硫酸除铜后进行氰化浸出,可使金的氰化浸出率提高4.65%。该方法可获得较好的经济效益和社会效益。Based on experimental researches,a two-stage roasting and cyanidation technique is proposed to enhance the gold leaching rate of a gold concentrate containing arsenic.After the first stage roasting（450~500 ℃） to remove arsenic,an additive SR is added before the second stage roasting（630~650 ℃）,and then dilute sulphuric acid is used for copper removal,the final process is cyanidation leaching.The test results show that the leaching rate of gold increases 4.65%,and good economic and social benefits are obtained.

关 键 词：含砷金精矿 二段焙烧 氰化 金 浸出率 

分 类 号：TF046[冶金工程—冶金物理化学]